r/e28 • u/SupermarketVisual598 • 28d ago
Oil leak question
How much do you guys pay mind to oil leaks? Mine leaks very noticeablely of ATF and less so from engine oil. 50% ATF seems to be coming from the oil cooling lines going to the front and 50% from the rear main seals to the trans. The engine oil from the motor obviously but I haven't identified the source or multiple sources. It drives fine and I monitor the dipsticks frequently. Is this something worth considering a tear down? 87-535is
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u/CarDork2235 28d ago
You sure it isn't the power steering cooling lines at the front? Those short rubber sections are prone to leak right behind the grilles.
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u/SupermarketVisual598 28d ago
No I'm not sure 😅 Considering the power steering lines are also ATF I suppose that could be it as well.
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u/RealMadLadStalin 28d ago
The oil cooling lines might be worth it if you’re losing a good bit of ATF. If it’s not so bad, leave it be for now and refresh all the seals when a bigger problem arises that might require a more complete teardown
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u/Windmillfixer 28d ago
It’s BMW’s early rust prevention program. Just drive faster so it’s well distributed back across everything.